Car-coupling



(No Model.)

0. L. W. DIET-28v F.'HAAP.

GAR COUPLING.

Patented Sept. 30

M m0 m4 W rfd. Hz 715 a IVITNESSES heights.

. UNITED STATES PATENT OFFICE.

OSWVALD L. WY. DIETZ AND FRED HAAF, OF CINCINNATI, OHIO.

CAR-COUPLING.

SPECIFICATION forming part Of Letters Patent No. 437,582, datedSeptember 30, 1890,: Apnlication filed June 11, 1890. Serial No.355,104. (No model.)

T0 at whom it may concern:

. Be it known that we, OSWALD L. W. DIETZ and FRED HAAF, citizens of theUnited States, and residents of Cincinnati, in the county of Hamiltonand State of Ohio, have invented certain new and useful Improvements inAutomatic'Car-Couplings; and we do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a side view. Fig. 2 is a top plan view. Fig.3 is a vertical transverse section, and Fig. i is a detail view.

This invention relates to certain improve ments in car-couplings; and itconsists in the construction and combination of parts, as will appearhereinafter.

In the drawings, A refers to the draw-bar, which has a slidingconnection with the draftrod a, by means of a cross-bar ct, projectingfrom the latter through slots a in inner extension of said draw-bar toprovide for a limited endwise play of the draw-bar.

B is the coupling-hook, preferably flared from its ends toward themiddle and having at said ends beaks or proj ections b, which drop intoor engage cavities c-one in the bottom of each of two draw-bars A. Thebottom of the hook-receiving chamber d of the drawbar has a doubleinclination sloping from its center inward and outward, the outwardslope adapting said chamber to receive coupling hooks or links fromdraw-bars of different The elevation thus formed at the meeting ends ofthe inclines of the double inclination provides for the requiredoscillation of the coupling hook or link.

C C are clamps or jaws engaging the coupling-hook B and preventing theaccidental disengagement of the beaks or projections of said hook fromtheir receiving-cavities and arranged one somewhat in advance of theother in openings 01 d in the side walls of the hook-receiving chamberof the drawbar.

The outer portions of the jaws or clamps C C are encircled by and tothem are connected springs D, held or contained in hollow screwplugs e,screwed into the draw-bar to automatically hold said jaws or clamps inengagement with the coupling-hook and to likewise return them to theirnormal position when their engaging ends are relieved of pressure.- Theopening d receiving the jaws or clamps C, has a greater vertical depththan the jaw or clamp in order to permit'its vertical adj ustment toprovide for its adaptation tothe height of the incoming coupling-hook.This adjustment of the clamp or jaw C is effected by means of ascrew-threaded or adjusting hanger or bolt F, engaging a screw-threadedvertical opening in the draw-bar A and having a neck f, passing througha slot f in said jaw or clamp and having a shoulder f on its lower endengaging an enlargement of said slot. I

G is a cam centrally pivoted in an opening g in the draw-bar A and belowthe couplinghook and having the oppositely-curved portions of its hornsor points engaging antifrictional rollers h, j ournaled or arranged uponrods H, passing through said opening and vertical slots 1' in alignmenttherewith and the jaws or clamp openings. Said rods H connect with thejaws or clamps C C and are guided at their lower ends in grooves j in acasting or plate I, bolted to the under side of the draw-bar A.

The cam G has on its upper side or surface a spiral or cam shoulder is,engaging a pin or slide 1, arranged in an opening Z in the bottom of thecoupling-hook chamber directly under the coupling-hook, and the said camhas connected to it at its extremities handled levers J, reachingoutward so as to be conveniently manipulated withoutpassing between thecars. Thus it will be seen that by moving either one of the handledleversJ the cam G is actuated so as to disengage through the rods H theclamps or jaws C C from the coupling-hook, and said coupling-hook issimultaneously lifted out of the cavity receiving the beak or projectionon that end of the hook, thereby eifecting the uncoupling of the cars.

The coupling operation is, as will have been observed from the precedingdescription, automatically eifected.

Having described this invention, what We claim, and desire to secure byLetters Patent, 1s-

1. The carcoupling having the springpressed jaws or clamps arranged inthe coupling-hook or link-receiving chamber, one of said jaws or clampsbeing vertically adj ustable, said chamber'also having a cavity orrecess to receive the beak or projection of said hook, substantially asset forth.

2. The car coupling having the spring pressed jaws or clamps adapted toengage the coupling-hook or engage cavities in the draw-bar, and a camengaging a pin or slide engaging said hook,

substantially as set forth.

, 3.- The car-coupling having a cam provided with a-spiralorcam-s'houlder engaging a sliding pin engaging the coupling-link andthe handled lever formanipulating said cam, substantially as set forth.1 4E. The car-:couplin g having the cam provided with theactuating-levers and a spiral shoulder "engaging a sliding coupling-hookand the rods connected to the link whose beaks or ends.

pin engagingthe .clamp or jaws and adapted to be actuated 25 by saidcam, substantially as set forth. I

5. The car-coupling having the couplinghook engaging clamps or jawsarranged in the draw-bar, one being adjustable by means of a screwhaving a neck passing through a slot in said jaw, and a shoulder on saidneck engaging an enlargement of said slot,-substantially as set forth.

6. The car-coupling having the coupling hook engaging jaws or clamps andthe cam engaging rods connected to said jaws or clamps and having theirlower ends guided in grooves in a plate or casting on the under side ofthe draw-bar, together with means for actuating said cam,s-ubstantiallyas specified. 40

In testimony whereof we affix our signatures in presence of twowitnesses.

'OSWALD L. W. DIETZ. FRED HAAF.

"Witnesses:

FRANK J. DWYER, ORRIS P. COBB.

